• 한국환경복원기술학회지
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• 제7권3호
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• pp.35-47
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• 2004

In order to study changes in vegetation pursuant to rooftop revegetation plantation methods, plantation methods for rooftop revegetation were divided into two types through an analysis of recent trends. Then, Planted plants and invasive plants on sites where the planting methods were introduced were monitored. Planting methods were divided into mono-layer meadow cover type and multi-layer planting cover type. They showed some differences in terms of the availability of wetland, the structure of vegetation layers, the planted species, and the material of mulching. According to the results of monitoring the two sample sites for different plantation methods, the number of invasive plants was higher in multi-layer planting cover type and the ratio of naturalized plants was higher by 30% in average in mono-layer meadow cover type. The main reason for such a result is that the natural soil used in the multi-layer planting cover type likely contained some seeds. Moreover, it's harder for invasive plant seeds to germinate in volcanic rocks than in natural soil. Also, it is attributable to wetlands available in multi-layer planting cover type and diverse living environments created by multi-layer planting. The reason of the ratio of naturalized plants being higher by at least 10% in mono-layer meadow cover type is the character of naturalized plants being stronger in unfavorable conditions than nature plants are. Accordingly, the germination rate in the volcanic rock mulching has likely contributed in raising the introduction and germination of naturalized plants. The results showed that multi-layer planting cover type using wetland creation and nature soil can increase the number of invasive plants and lower the ratio of naturalized plants. However, since seeds contained in the natural soil can affect the growth of planted plants, this needs to be clarified, It was judged that mono-layer meadow cover type may affect more greatly on the germination and growth of invasive plants than on those of planted plants, Its potential adoption in highly urbanized areas was examined. By complementing with the mutual benefits of each plantation method, it appeared possible to shift to a rooftop revegetation system suitable to the site.

• 한국환경복원기술학회지
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• 제14권1호
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• pp.89-104
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• 2011

This study was carried out to the development of ecological planting model to make up of coastal windbreak forest on the Suncheon-bay in Sucheon-si, Korea. Make up of coastal windbreak forest in this site was needed for appropriate bioresource, biodiversity and ecological structure, and for conservation of the eco-tour resource and protection of human life and property by the unforeseen disaster from the coast. Based on the plant-social principle, the planting model of windbreak forest was developed to facilitate growth of trees, considering planting locations. The ecological planting model for the coastal windbreak was composed of warm temperate evergreen and windbreak forest which is spreading around the inland area in Korea. The horizontal forest style was composed of forest edge community and inner forest community, and the vertical forest style was composed of upper, middle, low and ground planting class. The target of the present model was quasi-natural forest, and the species of tree were selected based on the adaptability to surroundings depending on a goal to create a forest and forest style. To achieve both functions of wind break forest and visual effect in short period of time, small trees and seedlings were planted with high-density of 40,000/ha in an expectation of easy natural maintenance in the future. The significance of the present study is a suggestion for a guideline to create ecological coastal windbreak forest in the Suncheon-bay in which the harmony of human life and the ecological conservation is of great importance. Also, the ecological coastal windbreak forest model should be developed further through the long term monitoring after construction of forest.

• 대한원격탐사학회:학술대회논문집
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• 대한원격탐사학회 2003년도 Proceedings of ACRS 2003 ISRS
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• pp.546-548
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• 2003

The expanded waste glass material is one of the recycling materials. We investigated whether the expanded waste glass material is useful as planting basis and effective as heat insulation. We examined the difference of the materials by using vegetation index and temperature. The combination of the improved soils and the improved glasses marked higher vegetation index than other mixture materials. Moreover, this combination material is excellent than other ones to heat insulation. Therefore, it suggests that the expanded waste glass material has high potential to be used as a material for planting basis.

• 농촌계획
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• 제23권1호
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• pp.157-164
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• 2017

Roadside native vegetation provides important habitat for plants and animals, and provides visual amenity and beauty for drivers and rural areas. In particular, native wildflowers create and maintain attractive landscaping and scenic vistas while help protect and restore the natural environment. However, it is lacking in government policies and guidelines about using native wildflowers for roadside vegetation and alien invasive plants are a major threat to our environment. The purpose of this study is to review the regulations and programs for roadside vegetation, especially native wildflowers in USA in order to learn lessons about developing wildflower policies in Korea. A summary of results follows: (1) the goals of roadside vegetation have been shifted from beautification for pleasant driving experience to sustainable and economical maintenance. (2) Various funds and laws by federal and local government are essential for native wildflower planting and roadside enhancement. (3) Ongoing projects on seed collection and seed banking of native plants are conducted by wildflower research centers to conserve and propagate endangered plants. (4) Recognizing that wildflower viewing holds tremendous potential, increasing local governments try to grow wildflower tourism for economic benefits. In conclusion, we should establish a long-range plan and regulations on roadside wildflowers planting in order to create safe and sustainable transportation corridors in Korea. In addition, more research on wildflower habitat and propagation should be warranted and landscape architects should play a definitive role in providing pleasant driving experiences and promoting wildflower tourism.

• 한국약용작물학회지
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• 제18권2호
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• pp.93-97
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• 2010

Cultural practices of Asparagus cochinchinensis in highland area were performed for a potential medicinal crop. These studies were examined to propagation methods, planting densities, nitrogen treatments, and cropping years. The results are summarized as follows. The adequate number of buds per tuberous root was 4 for vegetative propagation because the number of tuberous root harvested was 16.8 and the yield was also the highest, exhibiting 1,060 kg/10a. The suitable planting time for vegetative propagation was later than early April. If the earlier tuberous roots were planted, the less they emerged. The highest emergence rate was obtained from the planting density of $30{\times}20cm$ as 97.2% while the yield was highest in the $30{\times}15cm$ density, exhibiting 1,883 kg/10a with emergence rate at 94.9. It seemed that the higher planting density promoted plant height growth and yield in Asparagus cochinchinensis. The highest fresh weight was recorded at 6 kg/10a of nitrogen fertilizer into the sandy loam soil compared to the level of 0, 3, 9 kg/10a. The yield was increased with cropping years. However, the proper harvesting time was the second year of cultivation because the rate of weight increase was maximized in the 2-year-old tuberous root. The yield in the third year was decreased as compared to that of the second year.

• 한국환경생태학회지
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• 제20권4호
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• pp.493-502
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• 2006

본 연구는 전원지 역 인 양구군을 대상으로 녹지 면적 및 식생구조 중심의 녹지구조를 정량 분석하고, 녹지에 대한 주민태도의 설문조사를 병행하여 녹지기능을 증진할 개선방안을 제시하였다. 수목피도는 공원이 약 29%로서 녹지공간 유형 중 가장높았고, 상업지 정원이 가장 낮아 3%에 불과하였다. 양구 전원지역의 수목식재는 개발밀도가 높은 도시의 경우보다 더 빈약하였다. 교목의 흉고직경분포는 20cm 미만의 점유비가 전체의 91%로서 도시지 역과 유사하게 유목 및 성장과정의 수목들이 우점하였다. 식재수종들의 상대우점치를 분석한 결과, 상위권 10개 수종 중4개 수종은 도시에서도 상위 10위권 내인 주요 도시경관수종들이었으며, 일부 우점종만 도시지 역과 상이하였다. 한편, 주거지 및 상업지 정원에선 우점종 대부분이 유실수로서 주로 실용적 수종을 식재한 것으로 나타났다. 녹지면적의 점유비는 공원 약 69%, 주거지 정원 39%, 공공용지 정원 37%, 가로 24%, 상업지 정원 15%등이었다. 향후 수목을 식재할 수 있는 잠재식재공간은 가로가 37%로서 현 수목피도를 약 6배, 주거지와 상업지 정원이 각각 19%,7%로서 현 수목피도를 2배이상 증진할 수 있을 것으로 분석되었다 녹지구조와 식재기법, 설문조사분석결과에 근거한 녹지확충 및 기능 개선책은 가로 구간별 테마 창출, 다층구조 조성, 정원 나지에 수목식재 및 건물 주변 에너지 절약적 식재 추진 등으로 요약된다.

• 한국작물학회:학술대회논문집
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• 한국작물학회 1999년도 추계 학술대회지
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• pp.80-101
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• 1999

Self-sufficiency ratio of food crops in Korea is estimated under $20{\%}$ in 2010 because total food consumption including feed will be increased. but food grain production will be decreased. It is necessary to maintain the optimum level of food self-sufficiency rate to secure national food demand/supply balance and non-trade and multiple function of agriculture in Korea. It will be possible to produce more food grains having the acceptable quality if the appropriate policy and cropping techniques are developed and practised in future. Breeding for high yielding varieties should be the first target to raise the production potential of food crops . Number of varieties developed during last 30 years is counted as 353 in food crops. New varieties developed in 1990s showed the higher yield potential and the improved agronomic characteristics compared with 1970s and 1980s varieties. But number of varieties planted on the farmer's field over $5{\%}$ of national planting area is less than one third of total varieties developed Breeding efforts to maintain planting area of main food crops should be focussed on consumer's demand and farmer's need. They are the best quality variety in each field of crop utilization, the newly designed variety adapting to changes of natural, rural and cropping environment, and the higher yielding variety. It is also needed to develop new quality crop varieties for inducing more consumption of crop grain produced in Korea for direct food or processing. Development of barley varieties for animal feed. high income soybean varieties, high quality wheat variety. and super yielding rice and barley varieties are also needed to keep or maximize national food production potential. In order to establish the appropriate cropping technique for domestic food security, the strong and continuous interest and financial support on crop breeding are required, and the inter-disciplinary and inter-institutionary researches should be strengthened for successful crop breeding.

• 한국정보통신학회:학술대회논문집
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• 한국해양정보통신학회 2006년도 춘계종합학술대회
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• pp.701-705
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• 2006

본 논문에서는 바퀴로 구성된 이동 로봇의 슬립 방지를 위한 경로 계획은 제안한다. 제안한 방식은 퍼텐셜 필드 경로 계획에서 척력에 대한 인위적인 힘을 평탄화 시키는 방식이다. 제안한 방식의 유용성을 확인하기 위하여 이동 로봇의 활동 영역에 C-obstacle이 존재하는 경우에 대해 시뮬레이션하여 제안한 방식의 성능이 기존 퍼텐셜 필드 방식보다 우수함을 확인하였다.

• 한국조경학회지
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• 제48권4호
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• pp.1-7
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• 2020

본 연구는 도시의 공공용지 녹지에 의한 탄소의 연간 흡수 및 저장을 계량화하고, 탄소저감 효과를 증진하기 위한 녹지구조의 개선방안을 제시하였다. 연구대상 도시는 규모와 분포지방을 고려하여 서울시, 대전시, 대구시, 춘천시, 순천시 등 총 5개 도시를 표본 선정하였다. 대상 도시의 항공사진 상에서 체계적 임의 표본추출방법을 통해 표본 공공용지를 선정하고, 녹지의 수평적 및 수직적 구조를 실사하였다. 도시 조경수목을 대상으로 개발한 수종별 계량모델을 적용하여, 식재수목에 의한 탄소의 연간 흡수 및 저장량을 산정하였다. 연구대상 공공용지의 교목밀도는 도시들 모두에 걸쳐 평균 1.4±0.1주/100㎡이고, 흉고직경은 14.9±0.2cm이었다. 녹지의 수직구조는 교목, 관목 또는 잔디만 식재한 단층구조의 비율이 다층구조보다 더 높았다. 식재수목에 의한 단위면적당 연간 탄소흡수량은 평균 0.65±0.04t/ha/yr이고, 단위면적당 탄소저장량은 7.37±0.47t/ha로서, 국내·외의 타 녹지공간 유형에 비해 낮은 탄소저감 효과를 보였다. 이는 연구대상 공공용지의 식재수목 밀도와 규격이 상대적으로 저조하기 때문이었다. 그럼에도 불구하고, 공공용지의 녹지는 공공용 전력소비에 따른 탄소배출을 도시에 따라 해마다 0.6(서울)~1.9%(춘천) 상쇄시키는 셈이었다. 잠재식재공간 내 수목식재는 기존 연간 탄소흡수량을 약 18% 추가 증진 가능하였다. 공공용지 녹지의 탄소저감 효과를 증진하기 위해서는 잠재식재공간의 적극적 수목식재, 상층 교목, 중층 교목 및 하층 관목으로 구성되는 다층 군식의 추진, 탄소흡수 능력이 양호한 교목종의 상층 식재, 상록수종의 토피어리, 관리회피 등이 요구된다. 본 연구는 국내 미진한 공공용지의 녹지구조 및 탄소상쇄를 구명하는데 중점을 두었다.

• 한국환경복원기술학회지
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• 제10권5호
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• pp.31-39
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• 2007

This study was carried out to evaluation the recycled waste soils from construction site for planting soil. For this purpose, the concentrations of polluted materials and the physico-chemical properties were measured at recycled soil samples of an industrial waste treating company in the Metropolitan landfill area. The concentrations of polluted materials did not exceed to the standard critical levels of soil pollution in all analyzed items. The measures of the samples soil texture (loamy sand), bulk density (1.09~1.32g/$cm^3$), saturated hydraulic conductivity ($1.6{\times}10^{-3}{\sim}1.8{\times}10^{-3}$cm/sec), solid phase distribution (0.4~0.5$m^3/m^3$), porosity (0.5~0.6$m^3/m^3$), Ex. $K^+$ (1.0~1.2cmol/kg), Ex. $Mg^{2+}$ (0.2~0.6cmol/kg) were identified as not worse than those of conventional planting soil. But the sample soils have serious problems for planting soil such as high levels of pH (9.6~11.5), EC (0.78~1.84ds/m) and Ex. $Ca^{2+}$ (25.6~34.5cmol/kg), low level of organic matter (0.2~0.3%). It is required to improve pH, EC and Ex. $Ca^{2+}$ of sample soils. Consequently, the results suggested a high potential of recycling of the wastes soils for planting soil.